continuity/Continuity.AuthServer/PacketHandlers/IPacketHandler.cs

// Copyright (c) 2023 Timothy Schenk. Subject to the GNU AGPL Version 3 License.

using System.Diagnostics;
using JetBrains.Annotations;
using NetCoreServer;
using Wonderking.Packets;

namespace Continuity.AuthServer.PacketHandlers;

[UsedImplicitly(ImplicitUseTargetFlags.WithInheritors)]
public interface IPacketHandler<in T> : IPacketHandler where T : IPacket
{
    [UsedImplicitly]
    public Task HandleAsync(T packet, TcpSession session);

    async Task<bool> IPacketHandler.TryHandleAsync(IPacket packet, TcpSession session)
    {
        if (packet is not T tPacket)
        {
            return false;
        }

        using (var activity = new ActivitySource(nameof(Server)).StartActivity("HandleAsync"))
        {
            activity?.SetTag("Handler", this.ToString());
            activity?.SetTag("PacketId", packet.ToString());
            await HandleAsync(tPacket, session);
        }

        return true;
    }
}

public interface IPacketHandler
{
    Task<bool> TryHandleAsync(IPacket packet, TcpSession session);
}